Daikin FVXS25FV1B Specifiche

[Applied Models]z Inverter Pair : Cooling Onlyz Inverter Pair : Heat PumpSiBE06 - 708Inverter PairFloor Standing Type F-Series

SiBE06-708 Introductionix1.2 Used IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is desc

SiBE06-708 TroubleshootingService Diagnosis 894.3 Freeze-up Protection Control or High Pressure ControlRemote Controller DisplayA5Method of Malfunctio

Troubleshooting SiBE06-70890 Service DiagnosisTroubleshootingCheck No.06Refer to P.139NONONOCheck No. 06Indoor unit heat exchanger thermistor checkChe

SiBE06-708 TroubleshootingService Diagnosis 914.4 Fan Motor (DC Motor) or Related AbnormalityRemote Controller DisplayA6Method of Malfunction Detectio

Troubleshooting SiBE06-70892 Service DiagnosisTroubleshootingCheck No.01Refer to P.136Replace fan motor.Replace indoor unit PCB (2) .Replace indoor un

SiBE06-708 TroubleshootingService Diagnosis 934.5 Thermistor or Related Abnormality (Indoor Unit)Remote Controller DisplayC4, C9 Method of Malfunction

Troubleshooting SiBE06-70894 Service Diagnosis4.6 Signal Transmission Error (between Indoor and Outdoor Units)Remote Controller DisplayU4Method of Mal

SiBE06-708 TroubleshootingService Diagnosis 95TroubleshootingCheck No.10Refer to P.142Check the outdoor unit's LED A.Check the indoor unit-outdoo

Troubleshooting SiBE06-70896 Service Diagnosis4.7 Unspecified Voltage (between Indoor and Outdoor Units)Remote Controller Display UAMethod of Malfunct

SiBE06-708 TroubleshootingService Diagnosis 974.8 Outdoor Unit PCB AbnormalityRemote Controller DisplayE1Method of Malfunction DetectionDetect within

Troubleshooting SiBE06-70898 Service Diagnosis4.9 OL Activation (Compressor Overload)Remote Controller DisplayE5Method of Malfunction DetectionA compr

Introduction SiBE06-708x

SiBE06-708 TroubleshootingService Diagnosis 994.10 Compressor LockRemote Controller DisplayE6Method of Malfunction DetectionA compressor lock is detec

Troubleshooting SiBE06-708100 Service Diagnosis4.11 DC Fan LockRemote Controller DisplayE7Method of Malfunction DetectionA fan motor or related error

SiBE06-708 TroubleshootingService Diagnosis 1014.12 Input Over Current Detection4.12.1 25/35 ClassRemote Controller DisplayE8Method of Malfunction Det

Troubleshooting SiBE06-708102 Service Diagnosis4.12.2 50 ClassRemote Controller DisplayE8Method of Malfunction DetectionAn input over-current is detec

SiBE06-708 TroubleshootingService Diagnosis 103TroubleshootingCheck No.07Refer to P.140Check No.08Refer to P.141Check No.14Refer to P.145Replace the o

Troubleshooting SiBE06-708104 Service Diagnosis4.13 Four Way Valve Abnormality4.13.1 25/35 classRemote Controller DisplayEAMethod of Malfunction Detec

SiBE06-708 TroubleshootingService Diagnosis 105TroubleshootingCheck No.05Refer to P.137Check No.06Refer to P.139Check No.11Refer to P.142Correct.Recon

Troubleshooting SiBE06-708106 Service Diagnosis4.13.2 50 classRemote Controller DisplayEAMethod of Malfunction DetectionThe room temperature thermisto

SiBE06-708 TroubleshootingService Diagnosis 107TroubleshootingCheck No.05Refer to P.137Check No.06Refer to P.139Check No.11Refer to P.142Correct.Recon

Troubleshooting SiBE06-708108 Service Diagnosis4.14 Discharge Pipe Temperature ControlRemote Controller DisplayF3Method of Malfunction DetectionThe di

SiBE06-708List of Functions 1Part 1List of Functions1. List of Functions ...

SiBE06-708 TroubleshootingService Diagnosis 109TroubleshootingCheck No.04Refer to P.136Check No.06Refer to P.139Check No.11Refer to P.142Replace a def

Troubleshooting SiBE06-708110 Service Diagnosis4.15 High Pressure Control in CoolingRemote Controller DisplayF6Method of Malfunction DetectionHigh-pre

SiBE06-708 TroubleshootingService Diagnosis 111TroubleshootingCheck No.04Refer to P.136Check No.06Refer to P.139Check No.07Refer to P.140Check No.09Re

Troubleshooting SiBE06-708112 Service Diagnosis4.16 Compressor System Sensor Abnormality4.16.1 25/35 ClassRemote Controller Display H0Method of Malfun

SiBE06-708 TroubleshootingService Diagnosis 1134.16.2 50 ClassRemote Controller DisplayH0Method of Malfunction DetectionFault condition is identified

Troubleshooting SiBE06-708114 Service DiagnosisTroubleshootingConnect properly.(R5131)Connection OK?NOYESConnect properly.Connection OK?NOYESReplace t

SiBE06-708 TroubleshootingService Diagnosis 1154.17 Position Sensor AbnormalityRemote Controller DisplayH6Method of Malfunction DetectionA compressor

Troubleshooting SiBE06-708116 Service Diagnosis4.18 DC Voltage / Current Sensor AbnormalityRemote Controller DisplayH8Method of Malfunction DetectionD

SiBE06-708 TroubleshootingService Diagnosis 1174.19 CT or Related AbnormalityRemote Controller DisplayH8Method of Malfunction DetectionA CT or related

Troubleshooting SiBE06-708118 Service DiagnosisTroubleshootingCheck No.12Refer to P.143Turn off the power and turn it on again.Check No. 12Check the c

List of Functions SiBE06-7082 List of Functions1. List of FunctionsCategory FunctionsFVXS25/35/50FV1BRKS25/35/50F2V1BCategory FunctionsFVXS25/35/50FV1

SiBE06-708 TroubleshootingService Diagnosis 1194.20 Thermistor or Related Abnormality (Outdoor Unit)Remote Controller DisplayP4, J3, J6, H9Method of M

Troubleshooting SiBE06-708120 Service DiagnosisTroubleshootingCheck No.06Refer to P.139P4 : Radiation fin thermistorJ3 : Discharge pipe thermistorJ6 :

SiBE06-708 TroubleshootingService Diagnosis 1214.21 Electrical Box Temperature RiseRemote Controller DisplayL3Method of Malfunction DetectionAn electr

Troubleshooting SiBE06-708122 Service DiagnosisTroubleshootingCheck No.06Refer to P.139Check No.07Refer to P.140Check No.09Refer to P.141 : value for

SiBE06-708 TroubleshootingService Diagnosis 1234.22 Radiation Fin Temperature Rise4.22.1 25/35 ClassRemote Controller DisplayL4Method of Malfunction D

Troubleshooting SiBE06-708124 Service DiagnosisTroubleshootingCheck No.06Refer to P.139Check No.07Refer to P.140Check No.09Refer to P.141Turn off the

SiBE06-708 TroubleshootingService Diagnosis 1254.22.2 50 ClassRemote Controller DisplayL4Method of Malfunction DetectionA radiation fin temperature ri

Troubleshooting SiBE06-708126 Service DiagnosisTroubleshootingCheck No.06Refer to P.139Check No.07Refer to P.140Check No.09Refer to P.141Turn off the

SiBE06-708 TroubleshootingService Diagnosis 1274.23 Output Over Current DetectionRemote Controller DisplayL5Method of Malfunction DetectionAn output o

Troubleshooting SiBE06-708128 Service DiagnosisTroubleshootingCheck No.07Refer to P.140Check No.08Refer to P.141Check No.13Refer to P.143Note: If the

SiBE06-708 List of FunctionsList of Functions 3Category FunctionsFVXS25/35/50FV1BRXS25/35/50F2V1BCategory FunctionsFVXS25/35/50FV1BRXS25/35/50F2V1BBas

SiBE06-708 TroubleshootingService Diagnosis 1294.24 Insufficient Gas4.24.1 25/35 ClassRemote Controller DisplayU0Method of Malfunction DetectionGas sh

Troubleshooting SiBE06-708130 Service DiagnosisTroubleshootingCheck No.04Refer to P.136Check No.06Refer to P.139Reconnect in position.Open the stop va

SiBE06-708 TroubleshootingService Diagnosis 1314.24.2 50 ClassRemote Controller DisplayU0Method of Malfunction DetectionGas shortage detection I : A g

Troubleshooting SiBE06-708132 Service DiagnosisTroubleshootingCheck No.04Refer to P.136Check No.06Refer to P.139Reconnect in position.Open the stop va

SiBE06-708 TroubleshootingService Diagnosis 1334.25 Low-voltage Detection or Over-voltage DetectionRemote Controller DisplayU2Method of Malfunction De

Troubleshooting SiBE06-708134 Service DiagnosisTroubleshootingNote: If the model doesn’t have PM1, replace the outdoor unit PCB.Check the supply volta

SiBE06-708 TroubleshootingService Diagnosis 1354.26 Signal Transmission Error on Outdoor Unit PCBRemote Controller DisplayU7Method of Malfunction Dete

Check SiBE06-708136 Service Diagnosis5. Check5.1 How to Check5.1.1 Fan Motor Connector Output CheckCheck No.01 1. Check connector connection.2. Check

SiBE06-708 CheckService Diagnosis 1375.1.3 Four Way Valve Performance CheckCheck No.05 25/35 classTurn off the power and turn it on again.Start the he

Check SiBE06-708138 Service Diagnosis50 classTurn off the power and turn it on again.Start the heating-mode run.Replace the outdoor unit PCB.Replace t

List of Functions SiBE06-7084 List of Functions

SiBE06-708 CheckService Diagnosis 1395.1.4 Thermistor Resistance CheckCheck No.06 Remove the connectors of the thermistors on the PCB, and measure the

Check SiBE06-708140 Service Diagnosis5.1.5 Installation Condition CheckCheck No.07Installation condition checkNormalChange the position of the air dis

SiBE06-708 CheckService Diagnosis 1415.1.6 Discharge Pressure CheckCheck No.085.1.7 Outdoor Unit Fan System Check (With DC Motor)Check No.09Discharge

Check SiBE06-708142 Service Diagnosis5.1.8 Power Supply Waveforms CheckCheck No.10 Measure the power supply waveform between pins 1 and 3 on the termi

SiBE06-708 CheckService Diagnosis 1435.1.10 Capacitor Voltage CheckCheck No.12 Before this checking, be sure to check the main circuit for short-circu

Check SiBE06-708144 Service Diagnosis50 classChecking the power transistorzNever touch any live parts for at least 10 minutes after turning off the c

SiBE06-708 CheckService Diagnosis 1455.1.12 Main Circuit Electrolytic Capacitor CheckCheck No.14Checking the main circuit electrolytic capacitorzNeve

Check SiBE06-708146 Service Diagnosis

SiBE06-708Removal Procedure 147Part 7Removal Procedure1. Indoor Unit...

Indoor Unit SiBE06-708148 Removal Procedure1. Indoor Unit1.1 Removal of the Air Filter / Front PanelProcedure Warning Be sure to wait 10 minutes

SiBE06-708Specifications 5Part 2Specifications1. Specifications ...

SiBE06-708 Indoor UnitRemoval Procedure 1492Open the front panel.3Press the 2 right and left hooks at the top of the air filter downward, bend the fil

Indoor Unit SiBE06-708150 Removal Procedure5Undo 3 hooks from the bottom of the front panel and remove the front panel.6When installing the air filter

SiBE06-708 Indoor UnitRemoval Procedure 1518Pull the front grill to your side to remove.3 hooks are provided at the top of the main unit, but pull th

Indoor Unit SiBE06-708152 Removal Procedure1.2 Removal of the Horizontal BladeProcedure Warning Be sure to wait 10 minutes or more after turning

SiBE06-708 Indoor UnitRemoval Procedure 1531.3 Removal of the Electrical BoxProcedure Warning Be sure to wait 10 minutes or more after turning of

Indoor Unit SiBE06-708154 Removal Procedure5Disconnect 3 connectors.6Remove the fixing screw.7Pull the electrical box to your side and remove.8Pull th

SiBE06-708 Indoor UnitRemoval Procedure 1551.4 Removal of the PCBProcedure Warning Be sure to wait 10 minutes or more after turning off all power

Indoor Unit SiBE06-708156 Removal Procedure3. Removing the service PCB.Undo the left hook first.1Undo the 2 hooks.2Undo the 2 hooks.3Disconnect the c

SiBE06-708 Indoor UnitRemoval Procedure 1574. Removing the display PCB.1Undo the 2 hooks.2Disconnect the connector and remove the display PCB.5. Remov

Indoor Unit SiBE06-708158 Removal Procedure3Remove the 2 screws.4Remove the control PCB.Step Procedure PointsScrewScrew(R6800)Varistor V1Fuse250V 3.15

Specifications SiBE06-7086 Specifications1. Specifications1.1 Cooling OnlyNote: The data are based on the conditions shown in the table below. SL :

SiBE06-708 Indoor UnitRemoval Procedure 1591.5 Removal of the Vertical BladeProcedure Warning Be sure to wait 10 minutes or more after turning of

Indoor Unit SiBE06-708160 Removal Procedure4Remove the 2 screws and remove the swing motor.2. Removing the vertical blade (lower).Be careful not to c

SiBE06-708 Indoor UnitRemoval Procedure 1613Pull the lower part of the vertical blade to your side to remove.4Remove the 2 screws from the swing motor

Indoor Unit SiBE06-708162 Removal Procedure1.6 Removal of the Heat ExchangerProcedure Warning Be sure to wait 10 minutes or more after turning of

SiBE06-708 Indoor UnitRemoval Procedure 1631.7 Removal of the Fan Rotor / Fan MotorProcedure Warning Be sure to wait 10 minutes or more after tur

Indoor Unit SiBE06-708164 Removal Procedure3Pick the hooks with your fingers to remove the harness retainer.3. Removing the housing.Press the 2 hooks

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1652. Outdoor Unit : 50 Class2.1 Removal of the Panels and PlatesProcedure Warning Be sure to wait

Outdoor Unit : 50 Class SiBE06-708166 Removal ProcedureThe front grille has 4 hooks. Slide the discharge grille upwards and remove it.3Loosen the 6 s

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1675Undo the left side hooks, and then the right side hook.Remove the front panel.Lift the front

Outdoor Unit : 50 Class SiBE06-708168 Removal Procedure2. Remove the stop valve cover.1Loosen the screw of the stop valve cover.2Pull down the stop va

SiBE06-708 SpecificationsSpecifications 7Note: The data are based on the conditions shown in the table below. SL : The silent fan level of the air f

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1692.2 Removal of the Fan Motor / Propeller FanProcedure Warning Be sure to wait 10 minutes or mor

Outdoor Unit : 50 Class SiBE06-708170 Removal Procedure2. Remove the fan motor.1Disconnect the connector for fan motor (S70).2The illustration shows a

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1713Unscrew the washer-fitted nut (M10) of the propeller fan with a spanner.Align mark of the p

Outdoor Unit : 50 Class SiBE06-708172 Removal Procedure5Pull the fan motor out.Put the lead wire through the back of the motor when reassembling (so

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1732.3 Removal of the Electrical BoxProcedure Warning Be sure to wait 10 minutes or more after tur

Outdoor Unit : 50 Class SiBE06-708174 Removal Procedure4Disconnect the 2 earth wires.5Loosen the 3 screws of the right side panel.6Loosen the fixing s

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 175Insert the 2 hooks of the lower part and the 1 hook of the upper back when reassembling.7Disco

Outdoor Unit : 50 Class SiBE06-708176 Removal Procedure9Release the clamp and undo the wire from the hook.10Lift the electrical box and remove it.Step

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1772.4 Removal of the PCBProcedure Warning Be sure to wait 10 minutes or more after turning off al

Outdoor Unit : 50 Class SiBE06-708178 Removal Procedure4Undo the hook on the right.5Open the cable way board.6Disconnect the harnesses.1: Black2: Whit

Specifications SiBE06-7088 Specifications1.2 Heat PumpNote: The data are based on the conditions shown in the table below. SL : The silent fan level

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1798Loosen the 3 fixing screws for the main PCB.9Undo the 4 hooks.10Lift up and remove the PCB.Ste

Outdoor Unit : 50 Class SiBE06-708180 Removal Procedure2.5 Removal of the Sound BlanketProcedure Warning Be sure to wait 10 minutes or more after turn

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1814Remove the sound blanket (top-lower).5Remove the sound blanket (inner).Since the piping ports

Outdoor Unit : 50 Class SiBE06-708182 Removal Procedure2.6 Removal of the Four Way ValveProcedure Warning Be sure to wait 10 minutes or more after tur

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1834Heat up every brazed part in turn and disconnect.In case of the difficulty with gas brazing ma

Outdoor Unit : 50 Class SiBE06-708184 Removal Procedure2.7 Removal of the CompressorProcedure Warning Be sure to wait 10 minutes or more after turning

SiBE06-708 Outdoor Unit : 50 ClassRemoval Procedure 1853Release the clamp by pliers to detach the wire harness for the compressor.4Remove the putty.T

Outdoor Unit : 50 Class SiBE06-708186 Removal Procedure6Unscrew the nut of the compressor.Before working, make sure that the refrigerant is empty in

SiBE06-708Others 187Part 8Others1. Others ...1881.1 Test

Others SiBE06-708188 Others1. Others1.1 Test Run from the Remote ControllerFor Heat pump In cooling mode, select the lowest programmable temperature;

SiBE06-708Table of Contents iInverter PairF-SerieszCooling OnlyIndoor UnitFVXS25FV1BFVXS35FV1BFVXS50FV1BOutdoor UnitRKS25F2V1BRKS35F2V1BRKS50F2V1BzHea

SiBE06-708 SpecificationsSpecifications 9Note: The data are based on the conditions shown in the table below. SL : The silent fan level of the air f

SiBE06-708 OthersOthers 1891.2 Jumper Settings1.2.1 When Two Units are Installed in One RoomWhen two indoor units are installed in one room, the two w

Others SiBE06-708190 Others

SiBE06-708Appendix 191Part 9Appendix1. Piping Diagrams...1921.1 Indoor

Piping Diagrams SiBE06-708192 Appendix1. Piping Diagrams1.1 Indoor UnitsFVXS25FV1B, FVXS35FV1B FVXS50FV1BMUFFLER ASSY6.4CuT6.4CuTFIELD PIPINGTURBO FAN

SiBE06-708 Piping DiagramsAppendix 1931.2 Outdoor UnitsRKS25F2V1B, RKS35F2V1BRKS50F2V1BM9.5CuTMUFFLER9.5CuTLIQUID STOPVALVEGAS STOPVALVEFIELD PIPINGFI

Piping Diagrams SiBE06-708194 AppendixRXS25F2V1B, RXS35F2V1BRXS50F2V1BM9.5CuTDISCHARGE PIPETHERMISTORMUFFLERPROPELLER FAN7.9CuT7.9CuTCOMPRESSORFOUR WA

SiBE06-708 Wiring DiagramsAppendix 1952. Wiring Diagrams2.1 Indoor UnitsFVXS25FV1B, FVXS35FV1B, FVXS50FV1BSIGNALRECEIVERMS1WWIRELESSREMOTECONTROLLERou

Wiring Diagrams SiBE06-708196 Appendix2.2 Outdoor UnitsRKS25F2V1B, RKS35F2V1B, RXS25F2V1B, RXS35F2V1BRKS50F2V1BNOTENL1. REFER TO THE NAMEPLATE FOR THE

SiBE06-708 Wiring DiagramsAppendix 197RXS50F2V1BoutdoorSA2FIELD WIRINGYLWGRNSHEET METALX1Mindoor4WHT5E2BLKS903.15ABLU1UBRNSW4R3TS23WHR16PCB2Z2C(OUTDOO

Wiring Diagrams SiBE06-708198 Appendix

Specifications SiBE06-70810 Specifications

SiBE06-708Index iIndexNumerics00 ...873 minutes stand-by...

SiBE06-708ii IndexU2 ...133U4 ...

SiBE06-708Index iiipower transistor check ...143POWERFUL operation...28, 48p

SiBE06-708iv Index

SiBE06-708Drawings & Flow Charts vDrawings & Flow ChartsAARC452A series ...84automatic air f

SiBE06-708vi Drawings & Flow ChartsRradiation fin temperature rise ...123remote controller ...

Specifications, designs and other content appearing in this brochure are current as of March 2007 but subject to change without notice.SiBE 06-708Prin

SiBE06-708Printed Circuit Board Connector Wiring Diagram 11Part 3Printed Circuit BoardConnector Wiring Diagram1. Printed Circuit Board Connector Wirin

Printed Circuit Board Connector Wiring Diagram SiBE06-70812 Printed Circuit Board Connector Wiring Diagram1. Printed Circuit Board Connector Wiring Di

SiBE06-708 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 13PCB Detail PCB(1): Sensor PCBPCB(2): Control

Printed Circuit Board Connector Wiring Diagram SiBE06-70814 Printed Circuit Board Connector Wiring Diagram1.2 Outdoor Unit1.2.1 RK(X)S 25/35 FConnecto

SiBE06-708 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 15PCB Detail PCB(1): Filter PCBPCB(2): Control

Printed Circuit Board Connector Wiring Diagram SiBE06-70816 Printed Circuit Board Connector Wiring Diagram1.2.2 RK(X)S 50 FConnectors PCB(1)(Main PCB)

SiBE06-708 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 17PCB Detail PCB(1): Main PCB (outdoor unit)PC

Printed Circuit Board Connector Wiring Diagram SiBE06-70818 Printed Circuit Board Connector Wiring Diagram

SiBE06-708ii Table of Contents1. Introduction ...v1.1 Safety

SiBE06-708Function and Control 19Part 4 Function and Control1. Main Functions...

Main Functions SiBE06-70820 Function and Control1. Main FunctionsNote: See the list of functions for the functions applicable to different models.1.1

SiBE06-708 Main FunctionsFunction and Control 21Inverter Features The inverter provides the following features:The regulating capacity can be changed

Main Functions SiBE06-70822 Function and Control1.2 Wide Angle Louvers and Auto-SwingWide-Angle LouvresThe louvres, made of elastic synthetic resin, p

SiBE06-708 Main FunctionsFunction and Control 231.3 Fan Speed Control for Indoor UnitsControl Mode The airflow rate can be automatically controlled de

Main Functions SiBE06-70824 Function and Control1.4 Programme Dry FunctionProgramme dry function removes humidity while preventing the room temperatur

SiBE06-708 Main FunctionsFunction and Control 251.5 Automatic OperationAutomatic Cooling / Heating Function (Heat Pump Only)When the AUTO mode is sele

Main Functions SiBE06-70826 Function and Control1.6 Thermostat ControlThermostat control is based on the difference between the room temperature and t

SiBE06-708 Main FunctionsFunction and Control 271.7 Night Set ModeWhen the OFF timer is set, the Night Set function automatically activates.The Night

Main Functions SiBE06-70828 Function and Control1.8 Inverter POWERFUL OperationOutline In order to exploit the cooling and heating capacity to full ex

SiBE06-708Table of Contents iiiPart 5 System Configuration... 511. System Configuration...

SiBE06-708 Main FunctionsFunction and Control 291.9 Other Functions1.9.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold air blast that n

Main Functions SiBE06-70830 Function and Control1.9.6 Self-Diagnosis Digital DisplayThe microcomputer continuously monitors main operating conditions

SiBE06-708 Function of ThermistorFunction and Control 312. Function of ThermistorA Outdoor Heat Exchanger Thermistor1. The outdoor heat exchanger th

Control Specification SiBE06-70832 Function and Control3. Control Specification3.1 Mode HierarchyOutline There are two modes; the mode selected in use

SiBE06-708 Control SpecificationFunction and Control 333.2 Frequency ControlOutline Frequency will be determined according to the difference between r

Control Specification SiBE06-70834 Function and ControlIndoor Frequency Command (∆D signal)The difference between a room temperature and the temperatu

SiBE06-708 Control SpecificationFunction and Control 353.3 Controls at Mode Changing / Start-up3.3.1 Preheating OperationOutline25/35 classOperate th

Control Specification SiBE06-70836 Function and Control3.3.2 Four Way Valve SwitchingOutline During the heating operation current must be conducted an

SiBE06-708 Control SpecificationFunction and Control 373.3.3 Four Way Valve Operation CompensationOutline At the beginning of the operation as the fou

Control Specification SiBE06-70838 Function and Control3.3.4 3 Minutes Stand-byProhibit to turn ON the compressor for 3 minutes after turning it off.(

SiBE06-708iv Table of ContentsPart 7 Removal Procedure ... 1471. Indoor Unit...

SiBE06-708 Control SpecificationFunction and Control 393.5 Input Current ControlOutline The microcomputer calculates the input current during the comp

Control Specification SiBE06-70840 Function and Control3.6 Freeze-up Protection ControlOutline During cooling operation, the signals being sent from t

SiBE06-708 Control SpecificationFunction and Control 413.8 Fan ControlOutline Fan control is carried out according to the following condition.1. Fan O

Control Specification SiBE06-70842 Function and Control25/35 class50 classFrequencyCompressorFour way valveFanElectronic expansionvalve openingONOFFON

SiBE06-708 Control SpecificationFunction and Control 433.11 Electronic Expansion Valve Control Outline The following items are included in the electro

Control Specification SiBE06-70844 Function and Control3.11.1 Fully Closing with Power ONInitialize the electronic expansion valve when turning on the

SiBE06-708 Control SpecificationFunction and Control 453.11.7 Control when frequency is changedWhen the target discharge pipe temperature control is a

Control Specification SiBE06-70846 Function and Control3.12 Malfunctions3.12.1 Sensor Malfunction DetectionSensor malfunction may occur either in the

SiBE06-708 Control SpecificationFunction and Control 473.13 Forced Operation ModeOutline Forced operating mode includes only forced cooling.Detail For

Control Specification SiBE06-70848 Function and Control3.14 Additional Function3.14.1 POWERFUL Operation ModeCompressor operating frequency is increas

SiBE06-708 Introductionv1. Introduction1.1 Safety CautionsCautions and WarningsBe sure to read the following safety cautions before conducting repair

SiBE06-708 Control SpecificationFunction and Control 493.15 Facility Setting Switch (cooling at low outdoor temperature)Outline This function is limit

Control Specification SiBE06-70850 Function and Control

SiBE06-708System Configuration 51Part 5System Configuration1. System Configuration...

System Configuration SiBE06-70852 System Configuration1. System ConfigurationAfter the installation and test operation of the room air conditioner hav

SiBE06-708 InstructionSystem Configuration 532. Instruction2.1 Safety Precautions2Safety precautions• Keep this manual where the operator can easily f

Instruction SiBE06-70854 System Configuration3• Do not block air inlets nor outlets. Impaired air flow may result in insufficient performance or troub

SiBE06-708 InstructionSystem Configuration 552.2 Names of Parts4Names of parts Indoor Unit  Opening the Front PanelHow to open the front panel: (pag

Instruction SiBE06-70856 System Configuration5 Outdoor Unit Indoor Unit1. Titanium Apatite Photocatalytic Air-Purifying Filter:• These filters are a

SiBE06-708 InstructionSystem Configuration 576 Remote Controller 1. Signal transmitter:• It sends signals to the indoor unit.2. Display:• It displays

Instruction SiBE06-70858 System Configuration2.3 Preparation Before Operation7Preparation Before Operation To set the batteries 1. Slide the front co

Introduction SiBE06-708viBe sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2m). Insufficient safety m

SiBE06-708 InstructionSystem Configuration 598Preparation Before Operation To set the clock 1. Press “CLOCK button”.is displayed.and blinks.2. Press

Instruction SiBE06-70860 System Configuration9 Turn the breaker ON• Turning ON the breaker closes the flap. (This is a normal procedure.)NOTETips fo

SiBE06-708 InstructionSystem Configuration 612.4 AUTO • DRY • COOL • HEAT • FAN Operation10AUTO · DRY · COOL · HEAT · FAN OperationThe air conditioner

Instruction SiBE06-70862 System Configuration11 To change the air flow rate setting5. Press “FAN setting button”.• Indoor unit quiet operationWhen th

SiBE06-708 InstructionSystem Configuration 632.5 Adjusting the Air Flow Direction12Adjusting the Air Flow DirectionYou can adjust the air flow directi

Instruction SiBE06-70864 System Configuration13 Air flow selection• Make air flow selection according to what suits you.When setting the air flow sel

SiBE06-708 InstructionSystem Configuration 652.6 POWERFUL Operation14POWERFUL OperationPOWERFUL operation quickly maximizes the cooling (heating) effe

Instruction SiBE06-70866 System Configuration2.7 OUTDOOR UNIT QUIET Operation15OUTDOOR UNIT QUIET OperationOUTDOOR UNIT QUIET operation lowers the noi

SiBE06-708 InstructionSystem Configuration 672.8 ECONO Operation16ECONO OperationECONO operation is a function which enables efficient operation by lo

Instruction SiBE06-70868 System Configuration2.9 TIMER Operation17TIMER OperationTimer functions are useful for automatically switching the air condit

SiBE06-708 Introductionvii1.1.2 Cautions Regarding Safety of UsersWarningBe sure to use parts listed in the service parts list of the applicable model

SiBE06-708 InstructionSystem Configuration 6918TIMER Operation To use ON TIMER operation• Check that the clock is correct. If not, set the clock to t

Instruction SiBE06-70870 System Configuration2.10 WEEKLY TIMER Operation19WEEKLY TIMER OperationUp to 4 timer settings can be saved for each day of th

SiBE06-708 InstructionSystem Configuration 7120WEEKLY TIMER Operation7. Press “NEXT button”. • The time will be set. • “ ” and the temperature blink.

Instruction SiBE06-70872 System Configuration21 To cancel WEEKLY TIMER operation 11.Press “WEEKLY button” to deactivate the WEEKLY operation.• The “

SiBE06-708 InstructionSystem Configuration 7322WEEKLY TIMER Operation  Confirming a reservation• The reservation can be confirmed.1. Press “ button”

Instruction SiBE06-70874 System Configuration23 Setting WEEKLY TIMER using copy mode •A reservation made once can be easily copied and the same setti

SiBE06-708 InstructionSystem Configuration 752.11 Care and Cleaning26Care and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller 1. Wipe

Instruction SiBE06-70876 System Configuration271. Open the front panel. (page 26.) 2. Remove the air filter.• Press the claws on the right and left of

SiBE06-708 InstructionSystem Configuration 7728NOTECheck Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry ou

Instruction SiBE06-70878 System Configuration2.12 Troubleshooting29Trouble ShootingThe following cases are not air conditioner troubles but have some

Introduction SiBE06-708viiiCheck to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely.If th

SiBE06-708 InstructionSystem Configuration 7930Please check again before calling a repair person.Check again.Case CheckThe air conditioner does not op

Instruction SiBE06-70880 System Configuration31WARNING When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.

SiBE06-708Service Diagnosis 81Part 6Service Diagnosis1. Caution for Diagnosis...

Caution for Diagnosis SiBE06-70882 Service Diagnosis1. Caution for DiagnosisThe Operation lamp flashes when any of the following errors is detected.1.

SiBE06-708 Problem Symptoms and MeasuresService Diagnosis 832. Problem Symptoms and MeasuresSymptom Check Item Details of MeasureReferencePageNone of

Service Check Function SiBE06-70884 Service Diagnosis3. Service Check FunctionIn the ARC452A series remote controller, the temperature display section

SiBE06-708 Service Check FunctionService Diagnosis 85Check Method 21. Enter the diagnosis mode.Press the 3 buttons (TEMP,TEMP, MODE) simultaneously.

Service Check Function SiBE06-70886 Service Diagnosis5. Press the TEMP button.Press TEMP or TEMP and change the digit until you hear the sound of “b

SiBE06-708 TroubleshootingService Diagnosis 874. Troubleshooting4.1 Error Codes and Description: Displayed only when system-down occurs.Code Indicati

Troubleshooting SiBE06-70888 Service Diagnosis4.2 Indoor Unit PCB AbnormalityRemote Controller DisplayA1Method of Malfunction DetectionEvaluation of z